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The Wilson's Snipe is a medium-sized, cryptically plumaged shorebird known for its extremely long bill, short legs, and distinctive 'winnowing' display flight. It is a master of camouflage, blending seamlessly into its wetland habitats. Formerly considered a subspecies of the Common Snipe (Gallinago gallinago), it was recognized as a distinct species in 2003 based on genetic, morphological, and vocal differences.
Size & lifespan
- Length
- 23-28 cm (9-11 in)
- Wingspan
- 39-45 cm (15-18 in)
- Weight
- 70-150 g (2.5-5.3 oz)
- Lifespan
- Up to 10 years in the wild
- Diet
- Insectivore, primarily feeding on invertebrates found in soft mud.
Physical characteristics
- Plumage
- Overall mottled brown, black, and buff plumage providing excellent camouflage. The back is streaked with black and buff, with two prominent buffy stripes running down the back. The underparts are whitish, with barred flanks. The head has a distinctive pattern of dark and light stripes: a dark crown with a buffy central stripe, a dark eye-stripe, and buffy supercilium and malar stripes. The tail is short, wedge-shaped, and typically shows rufous-orange outer tail feathers, especially visible in flight.
- Beak shape
- Extremely long (5-7 cm), straight, and slender, dark-tipped bill with a fleshy, sensitive tip for probing. The base of the bill is often paler, greenish-gray.
- Eye color
- Dark brown.
- Leg color
- Short, greenish-gray to yellowish-green legs and feet.
- Distinguishing features
- Very long bill, cryptic brown streaky plumage, two prominent buffy stripes on the back, barred flanks, and rufous outer tail feathers (visible in flight). Its erratic, zig-zag flight when flushed is also a key characteristic.
- Juvenile appearance
- Juveniles resemble adults but may have slightly duller plumage, less distinct streaking, and often show more buffy fringes to their feathers, giving them a somewhat scaly appearance on the back.
- Seasonal changes
- No significant seasonal plumage changes. Breeding and non-breeding plumages are essentially identical.
- Sexual dimorphism
- Males and females are outwardly similar in plumage and size. Males may have slightly longer bills on average, but this is not a reliable field mark.
How to identify
- 1
Bill Length
Look for an exceptionally long, straight, and slender bill, often 2-3 times the length of its head.
- 2
Plumage Pattern
Observe the intricate cryptic brown, black, and buff streaking and barring. Note the two distinct buffy stripes running down the back and the barred flanks. The head pattern with dark and light stripes is also characteristic.
- 3
Flight Pattern
When flushed, it takes off with an explosive, erratic, zig-zag flight, often accompanied by a harsh 'scaap' call. In display flight, listen for the unique 'winnowing' sound.
- 4
Tail in Flight
If seen well in flight, look for the rufous-orange outer tail feathers, which contrast with the darker central tail feathers.
- 5
Habitat
Always found in wet, muddy environments with dense vegetation. If you're in such a habitat and flush a bird with the described characteristics, it's likely a Wilson's Snipe.
Habitat & range
- Biomes
- Wetlands, marshes, bogs, wet meadows, tundra, and flooded fields.
- Geographic range
- Breeds across northern North America, including Alaska, Canada, and the northern contiguous United States. Winters from the southern United States, through Mexico, Central America, and into northern South America (Colombia, Venezuela).
- Elevation range
- Typically found from sea level up to 3,000 meters (10,000 feet) in some mountainous regions during migration or winter.
- Preferred environments
- Prefers shallow freshwater wetlands with dense emergent vegetation (sedges, grasses, rushes) for cover, and soft, muddy substrates for foraging. Requires a mix of open mudflats and dense cover.
Behavior
- Activity time
- Primarily crepuscular and nocturnal, especially during migration and foraging, but can be active during the day, particularly when breeding or disturbed.
- Feeding habits
- Forages by probing its long, sensitive bill deep into soft mud and shallow water, detecting prey by touch. It consumes a variety of invertebrates, including insect larvae (especially dipterans like crane flies and midges), earthworms, leeches, crustaceans, and occasionally seeds. It often bobs its head and body rhythmically while foraging.
- Social behavior
- Generally solitary or found in loose aggregations, especially during migration and winter. They are not typically seen in large flocks.
- Flight pattern
- When flushed, it takes off with a characteristic explosive, zig-zag flight pattern, often uttering a harsh 'scaap' call, before leveling out and flying swiftly away. During courtship, males perform a spectacular 'winnowing' display flight, circling high in the air and then diving, producing a unique sound with modified outer tail feathers.
- Migration pattern
- Long-distance migrant. Northern breeding populations migrate south for the winter, while some southern breeding populations may be resident or undertake shorter migrations. Migration occurs primarily at night.
- Territoriality
- Males are territorial during the breeding season, defending their display and nesting areas. They use their aerial display flights and calls to establish and maintain territories.
Song & calls
- Song
- The primary 'song' is the mechanical 'winnowing' sound produced by air rushing through specialized outer tail feathers during the male's aerial display flight. This sound is a series of hollow, pulsating hoots or whistles, often described as 'hoo-hoo-hoo-hoo'.
- Call
- The most common call is a harsh, raspy 'scaap' or 'ketch' note, typically given when flushed from cover. They also have a softer 'chip' call and a rapid 'tika-tika-tika' call during courtship.
- When they vocalize
- The 'scaap' call is given year-round when disturbed. The 'winnowing' display and other courtship calls are primarily heard during the breeding season (spring and early summer), often at dawn, dusk, and sometimes at night.
Breeding & reproduction
- Breeding season
- April to July, peaking in May-June.
- Nesting habits
- Nests are typically well-concealed depressions on the ground, often at the base of a tussock or dense vegetation in a wet meadow or bog. The nest is a shallow scrape lined with grasses, sedges, and leaves.
- Clutch size
- Usually 4 eggs.
- Egg description
- Typically 4 eggs. Eggs are pear-shaped, olive-buff to greenish-brown, heavily spotted and blotched with dark brown, black, and purplish-gray, especially at the larger end.
- Incubation period
- 18-20 days, primarily by the female.
- Fledging period
- Chicks are precocial and leave the nest shortly after hatching (within hours). They are able to feed themselves but are tended by the female. They become independent and capable of flight at about 19-20 days.
- Parental care
- The female primarily incubates the eggs and cares for the young. Males may sometimes attend to the brood, but their involvement is variable. The female often leads the chicks to foraging areas and provides protection.
Where to find
Freshwater Marshes
Look in areas with dense emergent vegetation like cattails, sedges, and rushes, especially where there are muddy edges or shallow water.
Wet Meadows and Bogs
Areas with saturated soil and tussocks of grass provide ideal foraging and nesting sites.
Flooded Fields
Agricultural fields that are temporarily flooded can attract migrating or wintering snipes.
Tundra
In northern breeding grounds, they can be found in wet tundra habitats.
Field tips
- Walk slowly and deliberately. Snipes are incredibly camouflaged and will often remain motionless until you are very close. Walking slowly increases your chances of flushing one.
- Listen for the 'scaap' call. This distinctive call is often the first indication of a snipe's presence as it takes flight.
- Look for the 'winnowing' display. During the breeding season, especially at dawn and dusk, listen and watch for the male's aerial display and the unique sound it produces.
- Scan muddy edges. While they prefer dense cover, they will sometimes forage along the exposed muddy edges of wetlands. Look for their long bills probing the mud.
- Use binoculars for detail. Once flushed, try to get your binoculars on the bird to confirm the back stripes, barred flanks, and tail pattern.
Similar species
Common Snipe
Gallinago gallinago
The Common Snipe (found in Eurasia and Africa) is extremely similar. The primary distinction is vocal: Wilson's Snipe has a more rapid, pulsating 'winnowing' sound and a harsher 'scaap' call. Morphologically, Wilson's Snipe typically has 8 pairs of tail feathers (vs. 7 in Common Snipe), and the outer tail feathers are narrower and stiffer, contributing to the different winnowing sound. These tail feather differences are difficult to observe in the field. The barring on the flanks of Wilson's Snipe tends to be more extensive and coarser than in Common Snipe.
Short-billed Dowitcher
Limnodromus griseus
Dowitchers have a longer, straighter bill, but their body shape is more robust and less elongated than a snipe. They typically forage in more open mudflats and shallow water, often in groups, and have a distinctive 'sewing machine' feeding motion. In flight, dowitchers show a white wedge up the back, which snipes lack (snipes have buffy stripes on the back). Dowitchers also have different calls.
Long-billed Dowitcher
Limnodromus scolopaceus
Similar to Short-billed Dowitcher, but with an even longer bill. Distinguishing from Wilson's Snipe follows the same principles as Short-billed Dowitcher: different body shape, foraging behavior, flight pattern (white wedge on back), and calls.
Quick facts
- Scientific Name:
- Gallinago delicata
- Family:
- Scolopacidae (Sandpipers and Allies)
- Distinguishing Feature:
- Extremely long bill, cryptic plumage, zig-zag flight, 'winnowing' sound.
- Habitat:
- Freshwater wetlands, marshes, wet meadows.
- Diet:
- Invertebrates, primarily insect larvae and earthworms.
- Conservation Status:
- Least Concern
- Migration:
- Long-distance migrant
Fun facts
- The term 'sniper' originated from hunters who were skilled enough to shoot the elusive snipe, which is notoriously difficult to hit due to its erratic flight.
- The 'winnowing' sound produced by the male during its display flight is not vocal but mechanical, created by air vibrating through specialized outer tail feathers.
- Wilson's Snipe has eyes set far back on its head, giving it a wide field of vision (almost 360 degrees) to detect predators while its bill is buried in the mud.
- Its bill tip is highly sensitive and flexible, allowing it to feel and grasp prey underground without having to remove its bill from the mud.
Scientific classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Aves
- Order
- Charadriiformes
- Family
- Scolopacidae
- Genus
- Gallinago
- Species
- Gallinago delicata
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